Puvnooraph co



E. SCHNEIDER. MACHINE ron nesmmmsume Gun came CASES.

APPLICATION FILED FEB. l4 'l9l8.

Patented Aug. 19,1919.

4 SHEETS-SHEET I.

THE COLUMBIA Pumoumum co. WASHINGTON, D. c.

E. SCHNEIDER.

MACHINE FDR RESTBAIGHTENING GUN CHARGE CASES.

APPLICATION FILED FEB. 14, 1918- Patented Au '19, 1919.

4 SHEETS-SHEET 2.

E. SCHNEIDER.

MACHINE FOR RESTRAIGHTE NING GUN CHARGE CASES.

APPLICATION FILED FEB-14, 1918.

'1 ,3 1 3,560 Patented Aug. 19, 1919.

4 SHEETS-SHEET 3.

E. SCHNEIDER.

MACHINE FOR RESTRAIGHTENING GUN CHARGE CASESP APPLICATION FILED FEB. 14. 1918.

4 SH SHEET 4- UNITED STATES PATENT, oEEIcE.

EUGENE SCHNEIDER, or rams,- EEANcE, AssIeNoE 'ro SCHNEIDER & cm, or rams,

' FRANCE, A LIMITED JOINT-STOCK COMPANY OF FRANCE.

MACHINE FOR RESTRAIGI-ITENING GUN-CHARGE CASES.

To all whom it may concern:

Be it known that I, EUGENE ScHNEroER, a citizen of the French Republic, and a resident of 42 Rue dAnjou, Paris, France, have invented new and useful Improvements in Machines for. Restraightening Gun- Charge Cases, which invention is fully set forth in the following specification.

Machines are employed at present for restraightening the cases containing oneelement of a gun charge, after those cases have I been firedone or more times. The majority of the machines hitherto known for this purpose, comprise a matrix mandrel between the walls of, which the lips of the case are forced by the displacement of the mandrel or of the case by means'ofa screw-and-nut mechanism.

The present invention has for its object to. provide an improved machine for rethe mandrel, constitutes at its free end a support for the case that is to be re-straightened, while the portion ofthe rod guided in the opposite end of the said cylinder is pierced with longitudinal ducts fordistributing the fluid under pressure alternately upon one or the other of the sides of the diaphragm, and for discharging the fluid confined on the other sideof thesaid diaphragm, and vice versa.

A practical constructional form of this invention is illustrated by way of example inthe accompanying drawings in which:"

Figure 1 is a longitudinal sectional elevation of the machine showing a case in place for being re-straightened.

Fig. 2 is a longitudinal section on the line II-II of Fig. 1, showing the parts of the machine in the position they occupy after this re-straightening operation.

Fig. 3 is a partial elevation corresponding to Fig. 1.

Specification of LettersPatent.

Patented Aug. 19, 1919.

Application filed February 14, 1918. Seria1 No. 217,199.

Fig. 4 is a plan corresponding to Fig. 3.

Figs. 5 and 6 are cross sections on the lines vV-V Fig. 1. U

, Fig. 7 isa partial section 'on a larger scale on the line VII-VII of Fig. 2.

Figs. 8 and'9 are sections on the lines VIII'VIII. and -IX-.IX respectively of. Fig. 7.

The improvedmachine comprises, in the known manner, a mandrel A consisting of a cylinder open at one end and carrying on its otherend a projecting boss B serving as a guide for a rod for centering or supporting the case D which is to be re-straightened. The lips of the case are clamped, for the purpose of re-straightening, between the suitably shaped inner wall a of the end of the cylinder and the outer surface 6 of the boss B. I

According to the present invention, a cylinder C is. formed as guided a rod E-F upon which is fixed a in theend C that is common, to the cylinder C and the mandrel 'A, forms with its head 6, of known construction, a support for thebase of the case which is to be re-straightened. The portion F of the rod that proj ectsbeyondthe other side of the diaphragm G' and is. guided in the end C of the cylinder C, is pierced with two longitudinal ducts f-f. The duct 7 communicates at one end through-a duct 9 with the lower side of the diaphragm Gr; The duct 7. communicates through a duct 9 with the upper side of the said='-,.diaphragm. The. lower ends of .thev

and VI'VI respectively of a prolongation of theend ofthe matrix mandrel A-B. Inthe endsC C of this cylinder there is- I diaphragm G held inside the said'cylinder.

C. The, portion E of the rod that is guided ducts--]"..f open into 'the corresponding 7 ports hh of a distributer H. Thedistributer Hisconnected by twocp1pes I and J to a pump K of known construction; The

ipeI which serves for the admission of the iquid or fluid under pressure compressed by the pump, can be placed alternately in communication either with the port and duct h; or with the port and duct h -f ac cording as one or the other of the two needle valves L, M is opened or closed. The discharge pipe J may be placed alternately in communication with the port and duct k-f or with the port and duct h f by means of branch passages j, 9' according 110 as the needle valve N is opened and the needle valve O is closed, and vice versa.

Inthe example shown, the matrix mandrel AB combined with the cylinderC, is assumed to be movable relatively to the diaphragm and rod EGF which is fixed upon a support P carrying the distributer H-.: "To the support P are fixed two. uprights,

Q, Q which serve as guides for lugs A of the cylinder A. To the upper end of the upright Q there is hinged a plate R which-can be raisedinto the position indicated in dot and dash lines in Fig. 1, for

the purpose of inserting a case for re,

straightening, or it can be turned down into the position shown in full lines in the same figure for the purpose of serving as a sup' port for the barrel'of the case during the re-straightening of the latter. The plate B may be fixed in its turned down positionby means of a boltingdevice located on the upright Q shown more particularly in Figs. 3 and 4. I

WVhen the parts are in thepositionshown in Fig. 1, and 'a case to be re-straightened has been placed in position upon the head of the rod E, the needle valves L, M N'and O are 'moved'into the position indicated in Figs. 7 8 and 9. The pump K having been set going, theliquid under pressure is forced through the pipe I and the port and duct "ascent of the cylinder C, the liquid confined 12 -7" on to the upper side of the diaphragm Gr. The matrix mandrel P B together with the cylinder C carried 'byit, is raised into the position shown in Fig. 2. During the the diaphragm G, and'the liquid confined between the top of the diaphragm and the end C of the cylinder C is discharged to the pump K. At the end of this stroke, the

partshave. resumed the positions shown in Fig. 1, and after raising, the plate R, the

re -straightened case can be removed'and a fresh case inserted for re-straightening. What I claim is I 1. .In a. machine for re-straightening gun 'charge cases after having been fired, the

combination of a matrix-mandrel having an annular recess forreceiving-the, openend of the case to be re-straightened, a cylinder for receiving fluid under pressure, constituting a coaxial prolongation of said mandrel, a piston or diaphragm working in said-cylinder, a rod carrying said plston or diaphragm, extending through both ends of said cylinder with a portion projecting beyond said mandrel, a support for the case to be re-straightened, located on said projecting rod portion, and longitudinal ducts pierced in the other rod portion pro ecting beyond the opposite side of said diaphragm, for distributing the fluid on to one side 0 said diaphragm. and discharging the fluid confined on the other side of said diaphragnf, and vice versa.

2. In a. machine for re-straightening gun charge cases after having been fired, the combination of amovable matrixmandrel havingan annular recess for receiving the open end of the case to be re-straightened, a movable cylinder for receiving fluid under pressure, constituting a co-axialprolongation of saidmand'rel, a fixed piston or diaphragm working in said cylinder, a fixed rod carrying said piston or diaphragm,

' extending through both ends of said cylinder with a fixed portion projecting beyond said mandrel, a support for the case to be restraightened, located on said projecting rod portion, longitudinal ducts pierced in the other fixed rod portion projecting beyond the opposite side of said diaphragm, for distributing the'fluid on to one side of said diaphragm and discharging the fluid confined on the other side of said diaphragm, and vice versa, fixed supports projecting beyond the open end of said mandrel, serving as guides for said mandrel and said cylinder, a plate hinged to one of said fixed supports, serving as an abutment for the case during the re-straightening operation, and a fastening for said plate during the restraightening operation.

In testimony whereof I have signed this specification.

EUGENE SCHNEIDER.

Witnesses ANDRE MOS'IIOKER, CHAS. P. PRESSLY.

I 00111:: of this patent may be obtained {oifive cents each, by addressing the Commissioner of Patents,

Washington, .D. 03" 

